Stripping means for machines for stitching together piece ends.



Versely to and ARTHURISHERWOOD, 0F HYDE PARK,

KENYON, 0F MANC sA i e .I. .i a

n oFrioE.

IVZQSSACHUSETTS, ASSIGNOR TO THOMAS HESTER, ENGLAND.

STRIPPIN G MEANS FOR MACHINES FOR STITCHIN G TOGETHER. PIECE ENDS.

Specification of Letters Patent.

Patented Dec. 31,1912.

To all whom it may concern:

. "Be it known that I, ARTHUR Isnnnwoon, a subject of Great Britain,residing at Hyde Park, in the county of Norfolk, State of Massachusetts,have invented a certain new and useful Improvement in Stripping Meansfor Machines for Stitching Together Piece Ends, of which the followingis aspecification, reference being had therein to the accompanyingdrawings- The invention is applicable more especially to machinesdesigned for stitching together piece-ends; that is to say, to machinesfor stitching together the final end of one piece or web of cloth andthe leading end of a second piece or web, and so on successively, inorder that a.series of pieces or webs may be joined together in acontinuous succession, as required in various processes of treatingcloth in which the material travels lengthwise through the apparatus inwhich it is operated upon.

Machines at present in use for the purpose stated are provided with twoseries of po nts or pins traveling side by side at a short distanceapart, and passing, respectively, at opposite sides of stitchingdevices. Two piece-endsto be united to each other are impaled upon thesaid points or pins, one piece above the other. By the onward movementortravel of the points or pins the two piece-ends, one thereof lying uponthe other as just explained, are. fed transpast the stitching devices,and thereby united by a line of stitches (seam) extending across thepieces at a short distance from the extremities thereof.- As thestitching progresses, the projecting extremities are trimmed off closealongside the line of stitches, beyond the said line, by trin'imingdevices located beyond the stitching devices. At the delivery side ofthe stitching devices the material is removed from the points or pins,and devices have heretofore been provided for stripping the materialfrom the points or pins. Diiliculty has been experienced, however, ineffecting the removal or stripping of the narrow widths that are trimmedoif from eyond the line of stitches. These narrow widths have a tendencyto remain clinging to the points or pins, particularly in the case oflight-weight or coarse-mesh goods, and devices such aspriortothe'present invention were in general use have proved in outforms and constructions.

Application filed June 12, 1911. Serial No, 32,662,

etlicient. In some cases, such devices have tended to become cloggedwith threads or portions of cloth carried to them by the points or pins,with the result that the points or pins have been broken.

The invention employs, in the combination with one or more continuoustraveling series of points or pins of a machine for stitching togetherthe said series, and preferably, though not necessarily in allinstances, having slots or openings through which the points or pinsproject to receiy e the piece-ends thereon, the. path of the saidcontinuous stripping means diverging from that of the points or pinsafter passing the stitch-making point,

so that the stripping means lifts the pieces pins and frees of clothfrom the points or them from the latter.

The invention may be embodied in diifer- Oneembodimentof the inventionis illus trated in the drawings, in which latter,-

Figure 1 shows in perspective certain of the'. gen ral features of a,so-called whaleback pi, ce-end sewing machine, with the said embodimentapplied thereto. ig. 2 shows in side elevatlon the parts which are shownin Fig. 1, the fixed frameworktbeing represented merely, in outline. f l

Having reference to the drawings, the fixed framework is marked 1, andat 2 are represented the stitching devices, which in practice may be ofany approved character. The two traveling series of points or pins uponwhich the piece-ends to be joined together are impaled are indicated at3, 4, they being shown as carried, in the case of the form of machinechosen for the purpose of illustrating invention into effect, see dottedlines in Fig. tion of the machine, at front and rear of the stitchingdevices, the said chains slide along fixed guideways or pathways (notnecessary to be shown since they are of well-known character). Thechains extend also around driving sprocket-wheels at 6, Fig. 2, andadjustable carrying bowls or pulleys at 7, same, figure. Traveling movement in the direction of the arrows in Figs. 1 and 2 is communicated tothe chains by devices not necessary to be shown. The trimming devices,represented by a pair of by endless chains 5, 2. In the upperporpiece-ends, continuous stripping means traveling in unison with onemanner of carrying the cutter-disks w, 00, coacting with each other, arelocated to act upon the piece-ends at a point slightly beyond thestitching devices,

, traveling series of points or pins a traveling stripper consisting ofan endless flexible band 8 having openings or slots, as at 8, to receivethe said points or pins. In the upper portionof the machine, in advanceof the stitching devices, the stripper" band ocpins,

- points or pins projectthe stripper-band. In traveling to and pastcupies a position at the bases of the points or andthe cloth-receivingportions of the through and above the, stitching devices and trimmingdevices the stripper-band remains in this position at the bases of thepoints or pins, but at a convenient point at the delivery side of thetrimming devices I mount upon a stand or bracket 9 projecting from thefixed frame 1 a guide-sheave or roll 10 by means of which thestripper-band is guided outward from the bases of the points or pins andentirely clear of the latter. At this place in the conjoint travel ofthe series of points or pins and.the stripper-band the latter, and withit thev portions of cloth impaled upon the said points or pins, arelifted entirely above and clear of the points or pins. Thereby the saidportions of cloth are effectually and completely stripped from thepoints or pins.

After passing the -guide-sheave or roll 10, the stripper-band isconducted below the 7 lower portion of the series of points or pins andthe carrying chain for such series, the said stripper-band beingsupported and guided by means of guide-rolls 11 and 12, mounted uponstands 13, 13, carried by the fixed frame 1 at opposite ends of thelatter, such guide-rolls being located properly to hold the returningportion of the stripperband entirely clear of the points or pins at theplaces where the said carrying chain passes around the drivingsprocket-wheel (S and the guide-bowl or pulley 7. After changing their.direction of movement around the carrying bowl or pulley 7 andguide-roll 12, the traveling chain and stripp'er-band converge, the pinsof the traveling chain reentering the slots of the stri perband, and theband lying close to the a'sesthe machine.

What is claimed as the invention is,

or pins on which vthe piece-ends- 'to' be stitched together are impaled,and by the travel of which they are fed past the stitching devices, of acontinuous flexible stripper the points or pins.

2. The combination with stitch; devices, and a continuous travelingserie ofpoi'nts stitched together are impaled, and by' the travel ofwhich they are fed past thestit'chsite sides of said stitching andtrimming devices, on which the piece-ends to 'be stitched together areimpaled, and by the-travel of trimming devices, of stripping meanstraveliug in unison with the two series of points or pins, the paths ofsaid series and strip-. ping means diverging after passing thestitch-making and trimming points, where- 95 by the pieces of cloth arefreed from the points or pins. I

In testimony whereof I affix my signature in presence of two witnesses.

.ARTHUR isHEnwooD.

lVitnesses NATHAN B. DAY,

Ci-I As. F. RANDALL.

of the pins throughout the upper-portion of 1. The combination withstitching devices, Z l i and a continuous traveling series of pointseetraveling in unison with the said-series,'the 65 paths of said seriesand stripper ;-divergin-g after passing the stiteh-making point,wherelby the stripper frees the pieces ofeloth from;

or pins on which the piece-ends itogbe ing devices, of acontinuous'flexible stripper traveling series of, points ,or pins atoppowhich they are fed past the stitching and

